Quick Question Guys!

[1bad4pt6]

Alright, I have a 1997 GT with a 2001 GT engine.. Ya know, all the PI goodies.. But I still have the 97 computer, my question is would it hurt or help me if i put the 2001 computer in? Was just wondering because I recently was gave a tuner for a 98-04 GT and it will not work with the 97 computer.. thanks in advance!

- Matt

 

[the5.ohh]

You might be better off using the 01 comp since you got the tuner. What tuner is it? Usually those tuners are compatible with 1996-2004 Mustangs so you just might be in luck. Double check what ya got

 

[CC'S95GT]

I would think a PI computer would make the PI engine run better than the non PI engine.
Did you have the origional computer tuned for the new engine?

 

[Marvin97]

What you need is a compatible handheld tuner and a dyno tune. I'd recheck whatever tuner you have, i've never heard of one that works for 98-04. Most all of them work 96-04. I'm fairly certain that you can't use the 2001 ECU because the pinout for the engine harness are different and so is the pinout on the ECU.

 

[1bad4pt6]

I have the Diablosport Predator. It will only work for 98-04. Gotta deal in it or I wouldn't even have got it

 

[Ninety8stang]

You should be okay just running the 97 computer anyways. theres a lot of guys out there just running with the factory tune and a PI swap. just give it like 100 miles and it should try to correct itself. then later on down the line you can take it to a shop and actually put a REAL tune on it. not that out of the box shit tune. Every car is different so i never really understood an out of the box tune. They're never right.

 

[MustangChris]

the computer is a faster unit, so theoretically it should increase durability and longevity, but you'll have to replace the engine harness, dash harness, door harnesses, and harness if you dont want to start splicing things.

 

[1bad4pt6]

Thanks Chris. I was thinking it was as simple as unplugging the 97 and dropping the 01 ecu in. Appreciate that reply.

 

[MustangChris]

no. not even close. right now my power mirrors dont work because ford changed up the pin-sizes on the plugs. I'm too cheep to pay $200.00 for door harnesses to make my mirrors work. I know who's losing, I dont need mirrors to tell me. LOL.

 

[duff daddy]

You might be better off using the 01 comp since you got the tuner. What tuner is it? Usually those tuners are compatible with 1996-2004 Mustangs so you just might be in luck. Double check what ya got

WRONG in the cobras, and gt's they used a digital pick up for the trans output speed sensor

I would think a PI computer would make the PI engine run better than the non PI engine.
Did you have the origional computer tuned for the new engine?

nope the actual ecu and processor speed has nothing to do with the efficiency or power output of the engine UNLESS your over 7500 rpm at which point the stock ecu will have trouble managing the ignition demand.

What you need is a compatible handheld tuner and a dyno tune. I'd recheck whatever tuner you have, i've never heard of one that works for 98-04. Most all of them work 96-04. I'm fairly certain that you can't use the 2001 ECU because the pinout for the engine harness are different and so is the pinout on the ECU.

sct one of the LARGEST hand held manufacturers list seperate for sn and new edge.....

I have the Diablosport Predator. It will only work for 98-04. Gotta deal in it or I wouldn't even have got it

If you like customer service i would strongly stuggest sct

You should be okay just running the 97 computer anyways. theres a lot of guys out there just running with the factory tune and a PI swap. just give it like 100 miles and it should try to correct itself. then later on down the line you can take it to a shop and actually put a REAL tune on it. not that out of the box shit tune. Every car is different so i never really understood an out of the box tune. They're never right.

I knew you were smart for a reason.. whats up bud

the computer is a faster unit, so theoretically it should increase durability and longevity, but you'll have to replace the engine harness, dash harness, door harnesses, and harness if you dont want to start splicing things.

how does a processors speed dictate durability... I thought that would be in the tune.... :/





I think that is enough for now.

 

[MustangChris]

how does a processors speed dictate durability... I thought that would be in the tune.... :/

key word is "theoretically" -- theoretically the computer can better adjust to changing conditions and provide a more accurate fuel quantity. This may be even more important on a returnless fuel system.

Based on his question I assumed he would pass on exchanging out the computer system (as well as the entire wiring for the car) and therefore decided to give concrete advice on the requirements to make it work opposed to starting a discussion on voo-doo conceptual thoughts on the benefits to a slightly faster computer in the car.

 

[duff daddy]

key word is "theoretically" -- theoretically the computer can better adjust to changing conditions and provide a more accurate fuel quantity. This may be even more important on a returnless fuel system.

Based on his question I assumed he would pass on exchanging out the computer system (as well as the entire wiring for the car) and therefore decided to give concrete advice on the requirements to make it work opposed to starting a discussion on voo-doo conceptual thoughts on the benefits to a slightly faster computer in the car.

But why would use or want a computer which is designed for returnless to dictate how your return fuel system works.... his 97 is return.

Also a lot of the newer ecm's are vin coded as well as the cars with pass lock

 

[MustangChris]

i was unaware of the vin coding -- learn something new everyday. lol.


as for the return style, i wasnt sure if he used the returnless fuel rails/system from the PI engine or not. I made the assumption that he wouldnt want to swap the wiring systems, so I simply started off at that point. If he would have said something along the lines of "Well i have all the wiring! so thats not a big deal!" We could have started the discussion of "is ripping your entire wiring system out worth the slightly faster computer? no performance gains? maybe slightly more accurate A/Fs aiding in minute MPG gains?" etc. etc. etc.

 

[duff daddy]

yea but for pi heads or pi manifold doesnt matter all it is, is just the fuel rail.... i dont know anyone who leaves the return style on the motor when doing a pi motor swap, 8 bolts and swap the injectors, and done..... murp

 

[MustangChris]

murp indeed.

 

[Shifty Powers]

+1 on if you want a tuner backed with customer service I would get the SCT.

Also yes SCT lists different years. kinda. Lets say I buy an SF3(which mind you is the same exact tuner as the X3, just one comes with preloaded tunes, one doesnt). I can use that SF3 on any mustang from 96-2014. Only thing that will effect that is actually getting a tune for that specific vehicle. The canned tunes from SCT I wouldnt suggest running on any car within that year range.

Hell it will also read the DTCs off of any OBD2 car


This is a nice info'ed thread though.. enjoyinig the read and info!